Heptacarpus pandaloides (Stimpson, 1860)

Xu, Peng & Li, Xin-Zheng, 2015, Report on the Hippolytidae Bate (sensu lato) from China seas, Zoological Systematics 40 (2), pp. 107-165 : 151-153

Heptacarpus pandaloides (Stimpson, 1860) ( Fig. 28 )

Hippolyte pandaloides Stimpson, 1860: 103 ; Doflein, 1902: 637. Type locality: Hakodate Bay , Hokkaido.

Spirontocaris propugnatrix De Man, 1906: 404 ; Kemp, 1914: 124; Nakazawa & Kubo, 1947: 775.

Spirontocaris pandaloides Balss, 1914: 44 ; Kemp, 1914: 93; Kemp, 1916: 386; Parisi, 1919: 74; Yokoya, 1930: 530; Yokoya, 1939: 270;

© Zoological Systematics, 40 (2): 107–165

Nakazawa & Kubo, 1947: 775.

Heptacarpus propugnatrix Holthuis, 1947: 13 ; Miyake, Sakai & Nishikawa, 1962: 123.

Heptacarpus pandaloides Holthuis, 1947: 13 , 44; Liu, 1955: 37; Miyake & Hayashi, 1968: 374.

Material examined. MBM109810 , 2 ♀ (cl 6.34, 7.36 mm), Liaoning, Dalian, Xiaoping Island , 1952-10-7 ; MBM109831 , 1 ♂ (cl 5.72 mm), Shandong, Qingdao, Qianhai , 1952-10-11 ; MBM109833 , 3 ovig. ♀ (cl 6.06–9.38 mm), fish farm, 1951-8-30 ; MBM109834 , 1 ♂ (cl 6.85 mm) ; MBM109835 , 7 ♂ (cl 4.61–5.43 mm), 2 ♀ (cl 7.20, 7.86 mm), 14 ovig. ♀ (cl 6.36–7.94 mm), Shandong, Qingdao, Qianhai , 1954-10-27 ; MBM109836 , 2 ♀ (cl 5.36, 6.15 mm), 2 ovig. ♀ (cl 6.47, 6.51 mm), Shandong, Qingdao, Xiaoqingdao , 1952-12-1 ; MBM109837 , 4 ♂ (cl 5.96–6.61 mm), 18 ovig. ♀ (cl 6.16–7.73 mm) ; MBM109840 , 2 ovig. ♀ (cl 7.87, 8.79 mm), Shandong, Qingdao, Qianhai , 1952-11-4 ; MBM109841 , 3 ♂ (cl 7.35–7.71 mm), Shandong, Qingdao, Guizhou Road , 1955-6-14 ; MBM109842 , 28 ovig. ♀ (cl 7.11–7.65 mm), Shandong, Qingdao, Huiquan Bay , 1952-11-18 ; MBM109844 , 11 ♂ (cl 4.98–6.49 mm), 3 ♀ (cl 6.74–8.37 mm), Shandong, Qingdao, Xizhen , 1955-7-25 , coll. Zhen-Yi Ma; MBM109845 , 51 ♂ (cl 4.66–7.14 mm), Liaoning, Changhai, Haiyang Island , 1956-9-27, coll. Jie-Shan Xu ; MBM109846 , 28 ♂ (cl 6.23–8.01 mm), 13 ♀ (cl 6.16–8.67 mm), 1965-4-17, coll. Hui-Lian Chen.

Description. Rostrum long, 1.3–2.0 times as long as carapace; dorsal margin with 7–10 teeth, of which posterior two situated on carapace; ventral margin with 9–13 teeth. Carapace smooth, with an acute antennal spine; antennal spine separated from obtuse suborbital angle by notch. Pterygostomial angle unarmed or armed with tiny tooth.

Abdomen smooth, third somite not geniculated. Pleuron of fifth somite pointed acutely. Telson usually armed with 5 pairs of dorsal spines, but sometimes 4 to 7 pairs or asymmetrical numbers of spines present; posterior margin with 3 pairs of spines.

Antennular peduncle reaching nearly to proximal third of rostrum; second segment with small marginal spine on lateral side; third segment also armed with similar spine on dorsalside. Antennal scale long and broad, being as long as or slightly longer than carapace; terminal spine on outer margin falling short of lamellar part.

Third maxilliped bearing epipod but destitute of exopod. All pereopods without epipods.

First pereopod rather stout, reaching first segment of antennular peduncle. Second pereopod slender and long, reaching as far as midpoint of antennal scale; carpus subdivided into 7 articles. Third pereopod being longest of all the © Zoological Systematics, 40 (2): 107–165 pereiopods, reaching beyond tip of second pereopod by dactylus; dactylus armed with 6 or 7 spinules excluding terminal claw; merus with 7–9 teeth on lateral side. Merus of fourth pereopod armed with 5–7 lateral spines; merus of fifth pereopod with 2–4 lateral spines.

First pleopod of males with elongate endopod, narrowed in distal part to slender appendix interna; second pleopod of males bearing distinct appendix masculine, slightly longer than appendix interna; along innermargin of appendix masculine with many strong hairs.

Coloration in life. Entirely bright green, sometimes with small red spots on lower margins of first three abdominal somites.

Distribution. Bohai Gulf, Yellow Sea; Sea of Japan; 0– 30 m.

Figures

Fig. 28. Heptacarpus pandaloides (Stimpson, 1860). A. Anterior part of body, lateral view; B. Abdominal pleurae; lateral view; C. Antennule and antennal scale, dorsal view; D. First pereopod, lateral view. Scale bars=1mm.